000
00255nam a2200109Ia 4500
008
231212s1978 xx 000 0 und d
041
_a
eng
082
_a
621.392
100
_a
Umrani
245
_a
Applied Physics
260
_a
Pune
_b
Vrindha Prakashan
_c
1978
999
_c
957488
_d
957488